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Phospholipase D (PLD) isoforms PLD1 and PLD2 serve as the primary nodes where diverse signaling pathways converge. However, their isoform-specific functions remain unclear. We showed that PLD1 and PLD2 selectively couple to toll-like receptor 4 (TLR4) and interleukin 4 receptor (IL-4R) and differentially regulate macrophage polarization of M1 and M2 via the LPS-MyD88 axis and the IL-4-JAK3 signaling, respectively. Lipopolysaccharide (LPS) enhanced TLR4 or MyD88 interaction with PLD1; IL-4 induced IL-4R or JAK3 association with PLD2, indicating isozyme-specific signaling events. PLD1 and PLD2 are indispensable for M1 polarization and M2 polarization, respectively. Genetic and pharmacological targeting of PLD1 conferred protection against LPS-induced sepsis, cardiotoxin-induced muscle injury, and skin injury by promoting the shift toward M2; PLD2 ablation intensified disease severity by promoting the shift toward M1. Enhanced Foxp3+ regulatory T cell recruitment also influenced the anti-inflammatory phenotype of Pld1LyzCre macrophages. We reveal a previously uncharacterized role of PLD isoforms in macrophage polarization, signifying potential pharmacological interventions for macrophage modulation.Vitamin D action has been linked to several diseases regulated by the brain including obesity, diabetes, autism, and Parkinson's. However, the location of the vitamin D receptor (VDR) in the brain is not clear due to conflicting reports. We found that two antibodies previously published as specific in peripheral tissues are not specific in the brain. We thus created a new knockin mouse with cre recombinase expression under the control of the endogenous VDR promoter (VDRCre ). We demonstrated that the cre activity in the VDRCre mouse brain (as reported by a cre-dependent tdTomato expression) is highly overlapping with endogenous VDR mRNAs. These VDR-expressing cells were enriched in multiple brain regions including the cortex, amygdala, caudate putamen, and hypothalamus among others. In the hypothalamus, VDR partially colocalized with vasopressin, oxytocin, estrogen receptor-α, and β-endorphin to various degrees. We further functionally validated our model by demonstrating that the endogenous VDR agonist 1,25-dihydroxyvitamin D activated all tested tdTomato+ neurons in the paraventricular hypothalamus but had no effect on neurons without tdTomato fluorescence. Thus, we have generated a new mouse tool that allows us to visualize VDR-expressing cells and to characterize their functions.Due to the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) pandemic, the world is currently facing high morbidity and mortality rates as well as severe disruption to normal societal and social structures. SARS-CoV-2 uses the ACE2 receptor for cellular entry. In a recent publication of The Journal of Pathology, Liu and coworkers highlight the effects of cigarette smoking on ACE2 expression in the respiratory epithelium. The authors studied the effects of acute cigarette smoke exposure in a murine model and confirmed their findings in human lung tissues and gene expression datasets. Their findings demonstrate that cigarette smoking increases ACE2 expression specifically at the apical surface of the airway epithelium. Smoking cessation resulted in lower ACE2 expression, with implications for attenuating the risk of transmission of the virus. The role of ACE2 expression in the development of COVID-19 symptoms is still under investigation, with conflicting results from experimental models on the role of ACE2 expression in SARS-CoV-2-induced lung injury. In this commentary, we highlight the implications and limitations of the study of Liu et al as well as future therapeutic strategies directed towards ACE2. © 2020 The Authors. The Journal of Pathology published by John Wiley & Sons, Ltd. on behalf of The Pathological Society of Great Britain and Ireland.
Explosive outbursts occur in 25%-70% of children with Tourette syndrome (TS) and may cause more distress than the tics themselves. Previous studies have indicated that a comorbid diagnosis of attention-deficit/hyperactivity disorder (ADHD) is associated with emotional dysregulation in TS; however, this relationship has almost exclusively been studied using parent-reported questionnaires.
We examined emotion regulation (ER) with an observational measure in 150 medication-naïve children aged 7-12 allocated to four groups Forty-nine children with TS, 23 children with ADHD, 16 children with TS+ADHD, and 62 typically developing controls. We assessed participants' ER ability, as well as parent-child interactions in the context of a complex puzzle task, and coded the observed behavior with the Tangram Emotion Coding Manual (TEC-M). We examined group differences in ER, as well as associations between ER and severity of symptoms pertaining to TS and ADHD.
Children with TS did not differ from controls in their ER but not in children with TS without comorbidity. These findings inform our understanding of the phenomenology of emotional dysregulation in TS and the role of comorbid disorders.Endometrial carcinoma (EC) is classified into a wide range of morphological variants; this list has expanded over the past decade with the inclusion of mesonephric-like and dedifferentiated carcinoma as EC variants in the fifth edition of the WHO Classification of Female Genital Tumours, and recognition that carcinosarcoma is a biphasic carcinoma rather than a sarcoma. Each EC variant has distinct molecular abnormalities, including TCGA-based molecular subtypes, allowing further subclassification and adding complexity. In contrast to this rapid progress in understanding EC, there are only two recognized EC precursor lesions endometrial atypical hyperplasia/endometrioid intraepithelial neoplasia (EAH/EIN) and serous intraepithelial carcinoma, a situation that has not changed for many years. Diagnosis of EC precursors is a cornerstone of surgical pathology practice, with early diagnosis contributing to the relatively favorable prognosis of EC. In this review we relate the precursor lesions to each of the EC morphological variants and molecular subtypes, discuss how successful early diagnosis is for each variant/molecular subtype and how it might be improved, and identify knowledge gaps where there is insufficient understanding of EC histogenesis. © 2020 The Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.Why is discontent with politicians highest among less-educated citizens? Supplementing explanations concerning a lack of resources and knowledge, we examine the cultural distance to many a politician perceived by this group. Inspired by qualitative studies mapping the worldviews of people from the lower social strata, we explore less-educated citizens' perceptions of politicians using in-depth (group) interviews carried out in various regions of the Netherlands (n = 26). Our analysis indicates that this group regards politicians as culturally distant "others" and that this perception goes hand in hand with specific negative evaluations of politicians. This improves our understanding of the much-reported political discontent of these citizens. selleck chemicals llc In moving beyond the often mentioned unspecific divide between the "people" and the "elite", our analysis reveals that our interviewees (i) consider politicians to be insensitive to the lived experiences of the "common" people, and therefore, question their legitimacy and the policies they propose; (ii) resent their communication styles, which they describe as "beating about the bush" and perceive to be emblematic of indecisiveness and a lack of integrity; and (iii) accuse them of superiority signaling, inspiring feelings of misrecognition and opposition. We conclude with detailing the implications of our findings for (future) research.
To investigate the significance of perioperative levonorgestrel-releasing intrauterine system (LNG-IUS) and/or gonadotropin-releasing hormone agonists (GnRHa) as adjuvant therapy in preventing recurrences or progression of diseases.
Medical records were collected from patients diagnosed with adenomyosis who underwent uterus-sparing surgeries from March 1, 2012 to December 31, 2018. The associations of perioperative adjuvant therapy with recurrence of disease and symptoms were analyzed with the Kaplan-Meier method and proportional hazards models with hazard ratios (HRs) and 95% confidence intervals (CIs).
A total of 322 eligible patients were included, of whom 173 (58.1%) received perioperative adjuvant therapy. Perioperative adjuvant therapy (HR 0.44, 95% CI 0.22-0.91, P=0.022) and perioperative GnRHa therapy (HR 0.48, 95% CI 0.24-0.99, P=0.042) significantly reduced disease recurrence. No patient using perioperative LNG-IUS therapy experienced recurrence. In the multivariate analysis, increased age (>35years at surgery) was the only risk factor for disease recurrence (HR 2.35, 95% CI 1.01-5.45, P=0.047).
Perioperative adjuvant therapy with GnRHa and/or the LNG-IUS can significantly reduce disease recurrence or progression for adenomyosis patients undergoing uterus-sparing surgery. Older patients are more likely to experience disease recurrence.
Perioperative adjuvant therapy with GnRHa and/or the LNG-IUS can significantly reduce disease recurrence or progression for adenomyosis patients undergoing uterus-sparing surgery. Older patients are more likely to experience disease recurrence.Autophagy is a crucial cellular homeostatic process and an important part of the host defense system. Dysfunction in autophagy enhances tissue susceptibility to infection and multiple diseases. However, the role of nucleotide oligomerization domain 1 (NOD1) in autophagy in bovine hepatocytes is not well known. Therefore, our aim was to study the contribution of NOD1 to autophagy during inflammation in response to a specific ligand γ-d-glutamyl-meso-diaminopimelic acid (iE-DAP). To achieve this aim, hepatocytes separated from cows at ∼160 days in milk (DIM) were divided into six groups the nontreated control (CON) group, the rapamycin-treated (RAP) group as a positive control, the iE-DAP-treated (DAP) group, the 3-MA-treated (MA) group, the rapamycin with 3-MA (RM) group, and the iE-DAP with 3-MA (DM) group. iE-DAP administration significantly increased the mRNA expression of NOD1, ATG16L1, RIPK2, ULK1, AMBRA1, DFCP1, WIPI1, ATG5, ATG7, ATG10, ATG4A, IκBα, NF-κB, CXCL1, IL-8, and STAT6 and significantly decreased PIK3C3. The protein expression of NOD1, p-IκBα, p-NF-κB/p-p65, LC3-II, ATG5, and beclin 1 were significantly upregulated and that of SQSTM1/p62, p-mTOR, and FOXA2 were significantly downregulated in response to iE-DAP. iE-DAP also induced the formation of LC3-GFP autophagic puncta in bovine hepatocytes. We also knocked down the NOD1 with siRNA. NOD1 silencing suppressed the autophagy and inflammation-related genes and proteins. The application of the autophagy inhibitor increased the expression of inflammatory molecules and alleviated autophagy-associated molecules. Taken together, these findings suggest that NOD1 is a key player for regulating both ATG16L1 and RIPK2-ULK1 directed autophagy during inflammation in response to iE-DAP in bovine hepatocytes.